Grommet



FIG. 1 is a front perspective view of a grommet showing my new design.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a left end elevation view thereof.

FIG. 4 is a side elevation view thereof.

FIG. 5 is a right end elevation view thereof. 

The ornamental design for a grommet, as shown. 